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底层流网捕秋虾,在北方三省一市普及以来,发展很快。我县自一九七八年开始学习使用该网具捕虾,但由于种种原因,产量一直不高,即使在资源较好的七九、八○年,最高单船产虾也只在6000—7000斤。一九八一年秋,对虾资源比八○年减少30％,有不少船提前停产、转业。如何提高对虾流网生产水平,全面分析该网具的利弊,坚定信心,为捕秋大虾闯新路,是很有必要的。为此,我们对一九八一年对虾流网船作一调查,现将调查情况报告如下:
Bottom stream net catch autumn shrimp, since the popularity of the three provinces and one city in the north, the rapid development. Our county has been studying the use of the net for shrimp catching since 1978. However, for various reasons, the yield has remained low. Even in the better-resourced 1979 and 1980, the highest single-shrimp production was only between 6,000- 7000 pounds. In the autumn of 1981, shrimp resources were reduced by 30% over those in 1980. Many of them stopped production and switched jobs ahead of schedule. How to improve shrimp net flow production level, a comprehensive analysis of the pros and cons of the network, a firm confidence in catching a new path for catching autumn prawns, it is necessary. To this end, we conduct a survey on the shrimp netting ship in 1981. We will report the survey as follows: